/* ==========================================================================
   Batalha Naval High-Tech - Tactical Cyber Command Stylesheet
   ========================================================================== */

:root {
  --bg-dark: #040811;
  --bg-card: #091222;
  --bg-surface: #0f1c33;
  --bg-elevated: #162846;

  --cyan: #00f0ff;
  --cyan-dim: rgba(0, 240, 255, 0.25);
  --cyan-glow: 0 0 12px rgba(0, 240, 255, 0.4);

  --green-tactical: #00ffaa;
  --green-dim: rgba(0, 255, 170, 0.2);

  --red-danger: #ff2a55;
  --red-glow: 0 0 15px rgba(255, 42, 85, 0.6);

  --orange-warn: #ff9900;
  --blue-water: #143257;
  --blue-miss: #39638f;

  --text-main: #e2f1ff;
  --text-dim: #7f99b8;
  --text-highlight: #ffffff;

  --font-tactical: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-tactical);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px, 24px 24px;
}

/* --- Top Header & HUD --- */
.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(9, 18, 34, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-icon {
  font-size: 1.3rem;
  filter: drop-shadow(0 0 6px var(--cyan));
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--cyan);
  text-transform: uppercase;
}

.hud-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  background: var(--bg-surface);
  border: 1px solid var(--cyan-dim);
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s;
}

.icon-btn:hover, .icon-btn:active {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  box-shadow: var(--cyan-glow);
}

/* --- Status Alert Banner (HUD Superior Aprimorado) --- */
.turn-banner {
  padding: 12px 18px;
  background: var(--bg-surface);
  border-bottom: 2px solid rgba(0, 240, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.3s ease-in-out;
  position: relative;
  z-index: 40;
}

.turn-indicator-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  flex-shrink: 0;
  transition: all 0.3s;
}

.turn-banner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.turn-banner-title {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-highlight);
  transition: all 0.3s;
}

.turn-banner-subtitle {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 500;
  margin-top: 2px;
  transition: all 0.3s;
}

/* Quando for a vez do jogador: Verde neon vivo e destaque máximo */
.turn-banner.your-turn {
  background: linear-gradient(90deg, rgba(0, 255, 170, 0.18), rgba(0, 240, 255, 0.22), rgba(0, 255, 170, 0.18));
  border-bottom: 2px solid var(--green-tactical);
  box-shadow: 0 4px 20px rgba(0, 255, 170, 0.3);
}

.turn-banner.your-turn .turn-indicator-dot {
  background: var(--green-tactical);
  box-shadow: 0 0 14px var(--green-tactical);
  animation: pulse-green 1.2s infinite;
}

.turn-banner.your-turn .turn-banner-title {
  color: #00ffaa;
  text-shadow: 0 0 12px rgba(0, 255, 170, 0.7);
}

.turn-banner.your-turn .turn-banner-subtitle {
  color: #a7ffd9;
}

/* Quando for a vez do oponente: Âmbar/Laranja de espera */
.turn-banner.opponent-turn {
  background: linear-gradient(90deg, rgba(255, 153, 0, 0.14), rgba(255, 80, 0, 0.14));
  border-bottom: 2px solid var(--orange-warn);
  box-shadow: 0 4px 15px rgba(255, 153, 0, 0.2);
}

.turn-banner.opponent-turn .turn-indicator-dot {
  background: var(--orange-warn);
  box-shadow: 0 0 10px var(--orange-warn);
  animation: pulse-orange 1.8s infinite;
}

.turn-banner.opponent-turn .turn-banner-title {
  color: var(--orange-warn);
}

.turn-banner.opponent-turn .turn-banner-subtitle {
  color: #ffc97a;
}

/* Tiro extra (Acertou joga de novo) */
.turn-banner.extra-turn {
  background: linear-gradient(90deg, rgba(255, 0, 85, 0.3), rgba(255, 170, 0, 0.3));
  border-bottom: 2px solid #ff2a55;
  box-shadow: 0 4px 25px rgba(255, 42, 85, 0.5);
  animation: flash-red 0.8s infinite alternate;
}

.turn-banner.extra-turn .turn-indicator-dot {
  background: #ff2a55;
  box-shadow: 0 0 15px #ff2a55;
}

.turn-banner.extra-turn .turn-banner-title {
  color: #ffffff;
  text-shadow: 0 0 15px #ff2a55;
}

/* Alerta de dano / desconexão */
.turn-banner.alert-danger {
  background: rgba(255, 42, 85, 0.25);
  border-bottom-color: var(--red-danger);
  animation: flash-red 1s infinite alternate;
}

.turn-banner.alert-danger .turn-banner-title {
  color: var(--red-danger);
}

/* --- Turn Splash Overlay (Anúncio Cinematográfico Central) --- */
.turn-splash-overlay {
  position: fixed;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  opacity: 0;
  pointer-events: none;
  z-index: 120;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 90%;
  max-width: 360px;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.turn-splash-overlay.show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.turn-splash-card {
  background: rgba(5, 12, 25, 0.96);
  backdrop-filter: blur(12px);
  border: 2px solid var(--green-tactical);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  text-align: center;
  box-shadow: 0 0 40px rgba(0, 255, 170, 0.55), inset 0 0 20px rgba(0, 255, 170, 0.15);
  width: 100%;
}

.turn-splash-card.opponent {
  border-color: var(--orange-warn);
  box-shadow: 0 0 40px rgba(255, 153, 0, 0.45), inset 0 0 20px rgba(255, 153, 0, 0.12);
}

.turn-splash-card.extra {
  border-color: #ff2a55;
  box-shadow: 0 0 45px rgba(255, 42, 85, 0.6), inset 0 0 20px rgba(255, 42, 85, 0.2);
}

.turn-splash-icon {
  font-size: 2.2rem;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 10px currentColor);
}

.turn-splash-title {
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 6px;
}

.turn-splash-card:not(.opponent):not(.extra) .turn-splash-title {
  color: var(--green-tactical);
  text-shadow: 0 0 14px rgba(0, 255, 170, 0.7);
}

.turn-splash-card.opponent .turn-splash-title {
  color: var(--orange-warn);
  text-shadow: 0 0 14px rgba(255, 153, 0, 0.7);
}

.turn-splash-card.extra .turn-splash-title {
  color: #ff5e7e;
  text-shadow: 0 0 15px rgba(255, 42, 85, 0.8);
}

.turn-splash-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.35;
}

/* Badge de status no topo do Radar de Ataque */
.radar-status-badge {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.2s;
}

.radar-status-badge.badge-active {
  background: rgba(0, 255, 170, 0.2);
  border: 1px solid var(--green-tactical);
  color: var(--green-tactical);
  box-shadow: 0 0 8px rgba(0, 255, 170, 0.4);
}

.radar-status-badge.badge-locked {
  background: rgba(255, 153, 0, 0.2);
  border: 1px solid var(--orange-warn);
  color: var(--orange-warn);
}

/* Estados interativos do Card do Radar */
.tactical-board-card.radar-active {
  border-color: var(--cyan);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
}

.tactical-board-card.radar-locked {
  opacity: 0.85;
}

.tactical-board-card.radar-locked .grid-cell {
  cursor: not-allowed;
}

@keyframes pulse-green {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

@keyframes pulse-orange {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.25); opacity: 0.6; }
}

/* --- Main Container --- */
.main-content {
  flex: 1;
  padding: 12px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* --- Screen Transitions --- */
.screen {
  display: none;
  flex-direction: column;
  animation: fadeIn 0.25s ease-out;
}

.screen.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- LOBBY SCREEN --- */
.lobby-box {
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
  margin: auto 0;
  text-align: center;
}

.lobby-hero-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-highlight);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.lobby-subtitle {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  color: var(--cyan);
  margin-bottom: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.input-tactical {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-dark);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
}

.input-tactical:focus {
  border-color: var(--cyan);
  box-shadow: var(--cyan-glow);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #00d2ff, #0077ff);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 119, 255, 0.4);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  width: 100%;
  padding: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--cyan-dim);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 10px;
}

.btn-secondary:hover, .btn-secondary:active {
  background: var(--cyan-dim);
  border-color: var(--cyan);
}

.lobby-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 20px 0;
  color: var(--text-dim);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.lobby-divider::before, .lobby-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.lobby-divider span {
  padding: 0 10px;
}

/* --- QR Code Waiting Card --- */
.qr-container {
  background: #07101e;
  border: 1px solid var(--cyan);
  border-radius: var(--radius-md);
  padding: 16px;
  display: inline-block;
  margin: 16px auto;
  box-shadow: var(--cyan-glow);
}

.qr-image {
  display: block;
  width: 220px;
  height: 220px;
  border-radius: var(--radius-sm);
  margin: 0 auto;
}

.room-badge {
  display: inline-block;
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid var(--cyan);
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--cyan);
  margin: 10px 0;
  text-shadow: var(--cyan-glow);
}

.network-hint {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin: 10px 0 16px;
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

/* --- SHIP PLACEMENT SCREEN --- */
.placement-header {
  text-align: center;
  margin-bottom: 12px;
}

.placement-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cyan);
  text-transform: uppercase;
}

.placement-instructions {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.fleet-selector {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px 2px;
  margin-bottom: 10px;
  -webkit-overflow-scrolling: touch;
}

.ship-chip {
  flex: 0 0 auto;
  background: var(--bg-surface);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.ship-chip.selected {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  box-shadow: var(--cyan-glow);
  color: #fff;
}

.ship-chip.placed {
  opacity: 0.6;
  border-color: var(--green-tactical);
  color: var(--green-tactical);
}

.placement-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

/* --- TACTICAL GRIDS --- */
.grid-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 auto;
  width: 100%;
}

.tactical-board-card {
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 420px;
  position: relative;
  overflow: hidden;
}

/* Efeito de radar varrendo a tela */
.tactical-board-card.radar-sweep::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent 0deg, transparent 320deg, rgba(0, 240, 255, 0.12) 360deg);
  border-radius: 50%;
  animation: sweep 6s linear infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.board-label-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  padding: 0 4px;
}

.board-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: 6px;
}

.board-subtext {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Coordenadas e Grid */
.grid-container {
  display: grid;
  grid-template-columns: 24px repeat(10, 1fr);
  grid-template-rows: 24px repeat(10, 1fr);
  gap: 2px;
  aspect-ratio: 1 / 1;
  width: 100%;
  user-select: none;
  position: relative;
  z-index: 2;
}

.grid-header-col, .grid-header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-dim);
  font-family: monospace;
}

.grid-cell {
  background: var(--blue-water);
  border: 1px solid rgba(0, 240, 255, 0.12);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: background-color 0.15s, border-color 0.15s;
  touch-action: manipulation;
}

.grid-cell:hover:not(.shot) {
  background: rgba(0, 240, 255, 0.25);
  border-color: var(--cyan);
}

/* Estados da Célula */
.grid-cell.ship {
  background: linear-gradient(135deg, #1d406a, #2a588f);
  border-color: var(--cyan);
  box-shadow: inset 0 0 4px rgba(0, 240, 255, 0.4);
}

.grid-cell.ship-preview {
  background: rgba(0, 255, 170, 0.35) !important;
  border-color: var(--green-tactical) !important;
}

.grid-cell.ship-invalid {
  background: rgba(255, 42, 85, 0.4) !important;
  border-color: var(--red-danger) !important;
}

.grid-cell.miss {
  background: #0f1e33;
  cursor: default;
}

.grid-cell.miss::after {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue-miss);
  box-shadow: 0 0 6px var(--blue-miss);
}

.grid-cell.hit {
  background: rgba(255, 42, 85, 0.3);
  border-color: var(--red-danger);
  cursor: default;
  animation: hit-pulse 1s infinite alternate;
}

.grid-cell.hit::after {
  content: '💥';
  font-size: 0.85rem;
  filter: drop-shadow(0 0 4px var(--red-danger));
}

.grid-cell.sunk {
  background: rgba(255, 42, 85, 0.65);
  border-color: #ff5e7e;
}

.grid-cell.sunk::after {
  content: '☠️';
  font-size: 0.85rem;
}

@keyframes hit-pulse {
  from { box-shadow: inset 0 0 2px var(--red-danger); }
  to { box-shadow: inset 0 0 10px var(--red-danger); }
}

/* --- BATTLE SCREEN & MOBILE TABS --- */
.mobile-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: var(--bg-surface);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  position: relative;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  color: #fff;
  box-shadow: var(--cyan-glow);
}

.tab-badge {
  background: var(--red-danger);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 800;
  display: none;
}

.tab-badge.active {
  display: inline-block;
  animation: pulse-red 1s infinite;
}

/* Fleet Tracker Silhouettes */
.fleet-status-bar {
  background: var(--bg-surface);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
}

.ships-indicator {
  display: flex;
  gap: 5px;
}

.ship-pip {
  display: inline-block;
  padding: 2px 5px;
  background: rgba(0, 240, 255, 0.15);
  border-radius: 3px;
  color: var(--cyan);
  font-size: 0.75rem;
}

.ship-pip.destroyed {
  background: rgba(255, 42, 85, 0.25);
  color: var(--red-danger);
  text-decoration: line-through;
  opacity: 0.6;
}

/* --- GAME OVER MODAL --- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 17, 0.88);
  backdrop-filter: blur(8px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background: var(--bg-card);
  border: 2px solid var(--cyan);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.35);
  animation: popIn 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

.modal-card.victory {
  border-color: var(--green-tactical);
  box-shadow: 0 0 40px rgba(0, 255, 170, 0.4);
}

.modal-card.defeat {
  border-color: var(--red-danger);
  box-shadow: 0 0 40px rgba(255, 42, 85, 0.4);
}

@keyframes popIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-title {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-card.victory .modal-title {
  color: var(--green-tactical);
  text-shadow: 0 0 15px rgba(0, 255, 170, 0.6);
}

.modal-card.defeat .modal-title {
  color: var(--red-danger);
  text-shadow: 0 0 15px rgba(255, 42, 85, 0.6);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 18px 0 24px;
}

.stat-item {
  background: var(--bg-surface);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--cyan);
}

.stat-lbl {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 2px;
}

/* Toast Messages */
.toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 150;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 90%;
  max-width: 360px;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--cyan);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
  font-size: 0.85rem;
  text-align: center;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Desktop layout enhancement */
@media (min-width: 768px) {
  .battle-boards-desktop {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .mobile-tabs {
    display: none;
  }
}

@keyframes pulse-border {
  0%, 100% { border-bottom-color: var(--green-tactical); }
  50% { border-bottom-color: rgba(0, 255, 170, 0.3); }
}

@keyframes flash-red {
  from { background: rgba(255, 42, 85, 0.2); }
  to { background: rgba(255, 42, 85, 0.45); }
}

@keyframes pulse-red {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}